content: Add out-of-line copy ctors for complex classes.

content/common/text_input_state.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_TEXT_INPUT_STATE_H_
 #define CONTENT_COMMON_TEXT_INPUT_STATE_H_
 
 #include <string>
 
 #include "content/common/content_export.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 
 namespace content {
 
 struct CONTENT_EXPORT TextInputState {
   TextInputState();
+  TextInputState(const TextInputState& other);
 
   // Type of the input field.
   ui::TextInputType type;
 
   // The mode of input field.
   ui::TextInputMode mode;
 
   // The flags of input field (autocorrect, autocomplete, etc.)
   int flags;
 
@@ skipping 23 matching lines @@
   bool show_ime_if_needed;
 
   // Whether this change is originated from non-IME (e.g., Javascript,
   // Autofill).
   bool is_non_ime_change;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_TEXT_INPUT_STATE_H_